From FitzRoy's barometers to impact-based phone alerts: How weather warnings have evolved across the UK and Ireland

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Fitzroy viewed the barometer as a significant aid to forecasting and placed barometers in a number of fishing villages along the coast. FitzRoy’s barometers saved countless lives but perhaps his biggest single impact on safety at sea with his plans for a Storm Warning Service.

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It was in 2011 when the Met Office moved to its Impact-based warning system. The National Severe Weather Warnings initially covered snow, ice, wind and rain. By 2018, lightning, thunderstorms, fog and extreme heat were included. Another example of how the warning systems develop and change over the decades. As our climate warms these early warnings and their call to action will be life-saving.

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The new Met Eireann weather warnings will identify where the expected impacts will be within a county which needs local knowledge and wider expertise, such as for river flows and transport networks.

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The path from barometers, cones & drums, semaphore, morse code, telegrams, radio broadcasts, newspapers and television have now been overtaken by our hand-held phones and on-demand information. There are even Emergency Alerts sent to our mobiles, driven by location and red weather warnings.

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